azureblog.co.uk
← cd ~/graph-permissions
// graph-permissions · AccessReview

AccessReview.ReadWrite.AllMicrosoft Graph permission · High risk

Allows the app to read, update, delete and perform actions on access reviews, reviewers, decisions and settings in the organization, without a signed-in user.

Application permission

High risk

Manage all access reviews. Allows the app to read, update, delete and perform actions on access reviews, reviewers, decisions and settings in the organization, without a signed-in user.

IDef5f7d5c-338f-44b0-86c3-351f46c8bb5f
ConsentAlways needs admin consent
RiskCan change data across the whole tenant.

Delegated permission

High risk

Manage all access reviews that user can access. Allows the app to read, update, delete and perform actions on access reviews, reviewers, decisions and settings that the signed-in user has access to in the organization.

IDe4aa47b9-9a69-4109-82ed-36ec70d85ff1
ConsentNeeds admin consent
RiskCan change data across the whole tenant.

Grant it to an app

In the portal: App registrations › your app › API permissions › Add a permission › Microsoft Graph › Application permissions, then grant admin consent. Or with Graph PowerShell:

powershell5 lines
Connect-MgGraph -Scopes "Application.Read.All", "AppRoleAssignment.ReadWrite.All"
$graph = Get-MgServicePrincipal -Filter "appId eq '00000003-0000-0000-c000-000000000000'"
$app   = Get-MgServicePrincipal -Filter "appId eq '<your app's client id>'"
New-MgServicePrincipalAppRoleAssignment -ServicePrincipalId $app.Id `
    -PrincipalId $app.Id -ResourceId $graph.Id -AppRoleId "ef5f7d5c-338f-44b0-86c3-351f46c8bb5f"

Ask for it when signing in

Delegated permissions act as the signed-in user, so the app can never do more than that user can.

powershell1 line
Connect-MgGraph -Scopes "AccessReview.ReadWrite.All"

Which apps already have it?

powershell6 lines
# Apps that hold AccessReview.ReadWrite.All as an application permission
Connect-MgGraph -Scopes "Application.Read.All"
$graph = Get-MgServicePrincipal -Filter "appId eq '00000003-0000-0000-c000-000000000000'"
Get-MgServicePrincipalAppRoleAssignedTo -ServicePrincipalId $graph.Id -All |
    Where-Object AppRoleId -eq "ef5f7d5c-338f-44b0-86c3-351f46c8bb5f" |
    Select-Object PrincipalDisplayName, PrincipalId, CreatedDateTime
powershell6 lines
# Apps with delegated consent for AccessReview.ReadWrite.All
Connect-MgGraph -Scopes "Application.Read.All", "Directory.Read.All"
$graph = Get-MgServicePrincipal -Filter "appId eq '00000003-0000-0000-c000-000000000000'"
Get-MgOauth2PermissionGrant -All |
    Where-Object { $_.ResourceId -eq $graph.Id -and ($_.Scope -split " ") -contains "AccessReview.ReadWrite.All" } |
    Select-Object ClientId, ConsentType, PrincipalId

Other AccessReview permissions

Check every app in your tenant → Permission explainer